There are four types of COVID-19 vaccines part 14

How do nucleic acid vaccines trigger immunity?

RNA vaccines encode the antigen of interest in messenger  RNA (mRNA) or self-amplifying RNA (saRNA)-molecular templates used by cellular factories to produce proteins. Because of its transitory nature, there is zero risk of it integrating with our own genetic material. The RNA can be injected  by itself, encapsulated within nanoparticles (as Pfizer’s mRNA-based Covid vaccine is), or driven into cells using some of the same techniques being developed for DNA vaccines.

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